12211111120122 has 24 divisors (see below), whose sum is σ = 26467517352276. Its totient is φ = 4068815000256.

The previous prime is 12211111120121. The next prime is 12211111120139. The reversal of 12211111120122 is 22102111111221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11305471494321 + 905639625801 = 3362361^2 + 951651^2 .

It is a super-2 number, since 2×12211111120122² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12211111120095 and 12211111120104.

It is not an unprimeable number, because it can be changed into a prime (12211111120121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129566013 + ... + 129660224.

Almost surely, 2^{12211111120122} is an apocalyptic number.

12211111120122 is an abundant number, since it is smaller than the sum of its proper divisors (14256406232154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211111120122 is a wasteful number, since it uses less digits than its factorization.

12211111120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259228862 (or 259228859 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12211111120122 its reverse (22102111111221), we get a palindrome (34313222231343).

The spelling of 12211111120122 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, one hundred twenty thousand, one hundred twenty-two".